论文部分内容阅读
地热能源包括干蒸汽、湿蒸汽、地热水、干热岩石的潜热和常态温差潜热。地热层流中含有对金属材料产生较大腐蚀作用的7种物质。它们是:①氧,②氢离子,③氯离子,④硫化氢,⑤二氧化碳、碳酸盐、碳酸氢盐离子,⑥氨、氨离子,⑦硫酸盐离子。通过上述物质的作用,通常会出现如下腐蚀现象:均匀腐蚀、点蚀、缝隙腐蚀、应力腐蚀开裂、硫化物应力腐蚀开裂、氢鼓泡、晶间腐蚀、电偶腐蚀、腐蚀疲劳、脱合金元素。
Geothermal energy sources include dry steam, wet steam, geothermal water, latent heat of dry-hot rocks and normal-temperature latent heat. Geothermal laminar flow contains a large corrosion on the metal material of the seven substances. They are: ① oxygen, ② hydrogen ions, ③ chloride ions, ④ hydrogen sulfide, ⑤ carbon dioxide, carbonates, bicarbonate ions, ⑥ ammonia, ammonia ions, ⑦ sulfate ions. Through the action of the above substances, the following corrosion phenomena usually occur: uniform corrosion, pitting corrosion, crevice corrosion, stress corrosion cracking, sulfide stress corrosion cracking, hydrogen bubbling, intergranular corrosion, galvanic corrosion, corrosion fatigue, .